2013 MERCEDES-BENZ S-CLASS SEDAN open hood

!
Like other batteries, the vehicle battery
may discharge over time if you do not use
the vehicle. In this case have the battery
checked
at a qualified specialist workshop,
such as an authorized Mercedes-Benz
Center. You can also charge the battery
with a charger recommended by Mercedes-
Benz. Contact an authorized Mercedes-
Benz Center for more information.
The battery and the cover of the positive
terminal clamp must be installed securely
during operation.
i Remove the SmartKey if you park the
vehicle and do not require any electrical
consumers. The vehicle will then use very
little energy, thus conserving battery
power.
Mercedes-Benz recommends that you do not
carry out work on batteries yourself, e.g.
removing or charging. Always have this work
performed at a qualified specialist workshop,
e.g. an authorized Mercedes-Benz Center. Charging the battery
G
WARNING
Never charge a battery still installed in the
vehicle
unless a battery charger unit approved
by Mercedes-Benz is being used. Gases may
escape during charging and cause explosions
that may result in paint damage, corrosion or
personal injury.
A battery charger unit specially adapted for
Mercedes-Benz vehicles and tested and
approved by Mercedes-Benz is available as an
accessory. It permits the charging of the
battery in its installed position. Contact an
authorized Mercedes-Benz Center for further
information and availability.
Charge the battery in accordance with the
separate instructions for the battery charger. G
WARNING
There is a risk of acid burns during the
charging process due to the gases which escape from the battery. Do not lean over the
battery during the charging process.
G
WARNING
Battery acid is caustic. Avoid contact with the
skin, eyes or clothing.
! Only charge the installed battery with a
battery

charger which has been tested and
approved by Mercedes-Benz. These battery
chargers allow the battery to be charged
while still installed.
! Only use battery chargers with a
maximum charging voltage of 14.8 V.
! Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment (Y page 481).
X Open the hood (Y page 456).
X Connect the battery charger to the positive
terminal

and earth point in the same order
as when connecting the donor battery in
the jump-starting procedure
(Y page 481).
X Read the battery charger's operating
instructions before charging the battery.480
Battery
Breakdown assistance

X
Make sure that the two vehicles do not touch.
X Secure the vehicle by applying the electric parking brake.
X Shift the transmission to position P.
X Switch off all electrical consumers (e.g. radio, blower, etc.).
X Open the hood (Y page 456). Position number
A identifies the charged battery of the other vehicle or an equivalent jump-
starting device.
X Remove the cover from positive terminal :.
X Connect positive terminal : on your vehicle to positive terminal ; of donor battery A
using the jumper cable, beginning with your own battery.
X Start the engine of the donor vehicle and run it at idling speed.
X Connect negative terminal = of donor battery A to earth point ? of your vehicle using
the jumper cable, connecting the jumper cable to donor battery A first.
X Start the engine.
X Allow the engine to run for a few minutes before disconnecting the jumper cable.
X First, remove the jumper cable from earth point ? and negative terminal =, then from
positive
terminal : and positive terminal ;, each time disconnecting from the battery on
your own vehicle first.
X Have the battery checked at a qualified specialist workshop, e.g. an authorized Mercedes-
Benz

Center. The jump-starting procedure is not a standard operating state; therefore, have
the battery checked. 482
Jump-starting
Breakdown assistance

Fuse box in the engine compartment
Fuse box on the left in the direction of
travel X
Open the hood (Y page 456). X
Remove any existing moisture from the
fuse box using a dry cloth.
X AMG vehicles: remove the control unit
above the fuse box.
X To open: undo screws : with an Allen
key.
X Remove bracket =.
X Remove cover ;.
X To close: check whether the rubber seal is
lying correctly in cover ;.
X Put cover ; back in position.
X Replace bracket =.
X Tighten screws : using an Allen key.
! The cover must be seated properly,
otherwise

moisture or dirt could impair the
function of the fuses.
X Close the hood ( Y page 457).
Fuse box on the right in the direction of
travel X
Open the hood (Y page 456). X
Remove any existing moisture from the
fuse box using a dry cloth.
X To open: open clamps ;.
X Remove cover ; upwards.
X To close:
check whether the rubber seal is
lying correctly in cover ;.
X Put cover ; back in position.
X Fold down cover : and close clamps ;.
! The cover must be seated properly,
otherwise

moisture or dirt could impair the
function of the fuses.
X Close the hood ( Y page 457). Engine emergency off
If the engine cannot be switched off as
described, observe the following procedure:
X Take the fuse allocation chart out of the
vehicle document wallet.
X Search for “Emergency engine shutdown”
in the fuse allocation chart.
X Remove the fuses listed under "Emergency
engine shutdown". Fuses
487
Breakdown assistance Z